The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2021
Filed:
Dec. 23, 2019
Applicant:
Polymer Ventures, Inc., Charleston, SC (US);
Inventor:
Christopher B. Murphy, Burr Ridge, IL (US);
Assignee:
POLYMER VENTURES, INC., Charleston, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/41 (2006.01); D21H 17/53 (2006.01); D21H 17/55 (2006.01); D21H 17/64 (2006.01); D21H 17/66 (2006.01); D21H 21/10 (2006.01); D21H 23/04 (2006.01); D21H 17/00 (2006.01); D21H 17/52 (2006.01); D21H 17/37 (2006.01); D21H 17/67 (2006.01); D21H 21/14 (2006.01); D21H 11/14 (2006.01); D21H 17/14 (2006.01);
U.S. Cl.
CPC ...
D21H 17/72 (2013.01); D21H 11/14 (2013.01); D21H 17/14 (2013.01); D21H 17/375 (2013.01); D21H 17/52 (2013.01); D21H 17/675 (2013.01); D21H 21/14 (2013.01); D21H 23/04 (2013.01);
Abstract
Provided herein are additives for paper compositions comprising poly(ethylene oxide) (PEO) and polyacrylamide polymer that are capable of increasing the ash retention of the paper composition. Also provided are methods of making a paper composition using the additives of the disclosure.